Our shipping department is temporarily closed. You are more than welcome to complete your order and it will be shipped as soon as we reopen on Monday, November 25th, 2024. This listing is for a vintage paper advertisement. This is a 1978 ad for a Boots Calculators: Casio FX-29 Scientific; Sinclair Cambridge Programmable; Commodore LC 43 SR Scientific; Texas Instruments SR 51-II! The size of the ad is approximately 8.5x11inches. The caption for this ad is 'The tougher the maths, the easier we make it' The ad is in . This vintage ad would look great framed and displayed! Add it to your collection today!